Combustible gas detection device

Abstract

The utility model discloses a combustible gas detection device and relates to the technical field of detection devices. The device comprises a detector, the rear side of the detector is fixedly connected with a rectangular protective shell, and the device further comprises an adjusting part which is installed on the detector; the self-locking part is arranged in the rectangular protective shell; the adjusting part comprises an adjusting assembly, and the adjusting assembly is arranged on the detector; the guide assembly is mounted in the rectangular protective shell; the adjusting assembly comprises two hinge rods arranged in the rectangular protective shell, and a hinge shaft penetrates through the two hinge rods. By arranging the adjusting part, the gas detection device solves the problems that when an existing gas detection device is used, the distance between holding plates is inconvenient to adjust, the gas detection device is difficult to adapt to the size difference of palms of a plurality of persons, the universality and the comfort degree of equipment holding are reduced, the hand fatigue of workers due to long-time holding is increased, and the working efficiency is improved. And the efficiency and the accuracy of the detection work are influenced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection device, especially, relate to combustible gas detection device. BACKGROUND

[0002] With the rapid development of chemical industry, energy and city gas industry, the safety accidents caused by combustible gas leakage occur frequently, and the efficient and reliable gas detection device becomes the core guarantee of safety production, and the sensitivity and response speed of combustible gas detector as the key equipment of risk prediction are directly related to the safety of personnel life and facilities, therefore, efficient gas detection device is needed to detect gas to ensure the safety of staff.

[0003] However, the existing gas detection device is inconvenient to adjust the distance between the holding plates when in use, and it is difficult to adapt to the size difference of the palms of multiple personnel, which reduces the universality and comfort of equipment holding, increases the hand fatigue of the staff holding for a long time, and thus affects the efficiency and accuracy of detection work. UTILITY MODEL CONTENT

[0004] The utility model aims at providing combustible gas detection device, through setting adjustment part, the existing gas detection device when in use, the problem that it is inconvenient to adjust the distance between the holding plates, it is difficult to adapt to the size difference of the palms of multiple personnel, reduces the universality and comfort of equipment holding, increases the hand fatigue of the staff holding for a long time, and thus affects the efficiency and accuracy of detection work is solved.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model discloses a combustible gas detection device, which comprises a detector, a rectangular protective shell is fixedly connected to the rear side of the detector, and further comprises: an adjusting part, which is installed on the detector; a self-locking part, which is arranged in the rectangular protective shell; the adjusting part comprises an adjusting assembly, which is arranged on the detector; a guide assembly, which is installed in the rectangular protective shell; the adjusting assembly comprises two hinged rods arranged in the rectangular protective shell, a hinge shaft is penetrated through the two hinged rods, an L-shaped block is fixedly connected to the front side of the hinge shaft, a U-shaped rod is hingedly arranged on the front side of each of the two hinged rods, and a holding piece is arranged on the front side of each of the two U-shaped rods; each of the two hinged rods is rotationally connected with the hinge shaft, that is, the two hinged rods are hingedly connected through the hinge shaft, and the holding piece comprises two holding plates fixedly connected to the front side of each of the two U-shaped rods; the side, where the two holding plates are close to each other, is in contact with the detector.

[0007] Further, the guide assembly comprises two guide sliding rods fixedly connected at the sides close to each other of the two U-shaped rods, outer walls of the guide sliding rods are fixedly connected with support blocks, and the sides close to the hinge shafts of the guide sliding rods are fixedly connected with anti-dropping blocks.

[0008] Further, the self-locking part comprises a buckle assembly arranged at the rear side of the detector, and a poking assembly mounted on the rectangular protective shell. The buckle assembly comprises a sliding rod fixedly connected to the bottom of the L-shaped block, left and right sides of the sliding rod are fixedly connected with a plurality of clamping teeth, the rear side of the detector is fixedly connected with two fixed blocks, the sides close to the sliding rod of the two fixed blocks are fixedly connected with spring telescopic rods, and the spring telescopic rods are provided with buckle pieces.

[0009] Further, the poking assembly comprises two connecting rods arranged on the rectangular protective shell, the rear side of the rectangular protective shell is provided with two sliding grooves, the rear side of the detector is fixedly connected with a guide rail, and the inner wall of the guide rail is in sliding connection with the sliding rod.

[0010] Further, the detector is an S316 portable combustible gas detection alarm, and its working principle is as follows: a pump suction sampling method is adopted, a combustible gas detection principle is usually catalytic combustion, when air containing combustible gas enters the sensor, the combustible gas is subjected to flameless combustion on the surface of the combustion bead under the action of the catalyst, heat is generated to increase the temperature of the combustion bead, and then the resistance value of the combustion bead is changed, a signal processing circuit converts the change of the resistance value into an electric signal, after amplification, filtering and other treatments, the concentration of the combustible gas is calculated according to a pre-set algorithm, when the concentration exceeds a set alarm threshold, an alarm device issues an alarm through sound and light, in addition, the detection alarm can be equipped with electrochemical, PID and infrared sensors for detecting other toxic and harmful gases, and the working principles thereof are based on the characteristics of the corresponding sensors, for example, an electrochemical sensor detects the gas concentration by generating an electric current through a chemical reaction between the combustible gas and the electrode.

[0011] The utility model has the following beneficial effects:

[0012] 1、By setting the adjusting part, when adjusting, the adjusting assembly is linked with the U-shaped rod through the hinged rod and the hinged shaft, can drive two hand plates to open and close synchronously, adapt to the size difference of different people's palms; the guiding assembly provides stable guidance for the movement of the hand plate by means of the cooperation of the guiding slide rod and the supporting block, and the anti-disengagement block can avoid the disengagement of the components, so that the adaptation to the size difference of multiple people's palms is realized, the universality and comfort of the equipment holding are improved, the stable holding of the staff during long-time detection operation is ensured, the hand fatigue is reduced, and the efficiency and accuracy of the detection work are indirectly ensured;

[0013] 2、By setting the self-locking part, during the adjusting process, the clamping teeth on the slide rod cooperate with the clamping block controlled by the spring telescopic rod, can be automatically clamped after the hand plate is adjusted to the appropriate distance, prevent the hand plate from retracting due to stress during holding, maintain a stable holding state; the pulling assembly can drive the clamping block to disengage from the clamping teeth through the sliding of the connecting rod in the sliding groove, facilitate the staff to push the hand plate back to the original position without using, have both locking reliability and operation convenience, further optimize the use experience of the detector.

[0014] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a schematic diagram of the rear side cross-sectional structure of the present application;

[0017] Figure 2 It is a schematic diagram of the local cross-sectional structure of the adjusting part of the present application;

[0018] Figure 3 It is a schematic diagram of the local cross-sectional structure of the self-locking part of the present application Figure 1

[0019] Figure 4 It is a schematic diagram of the local cross-sectional structure of the self-locking part of the present application

[0020] Figure 5 It is a schematic diagram of the overall structure of the present application.

[0021] In the drawings, the component list represented by each number is as follows:

[0022] ​111, detector; 112, rectangular protective shell; 2, adjusting part; 21, adjusting assembly; 211, articulated rod; 212, articulated shaft; 213, L-shaped block; 214, U-shaped rod; 215, holding plate; 22, guiding assembly; 221, guiding slide rod; 222, supporting block; 223, anti-dropping block; 3, self-locking part; 31, buckle assembly; 311, slide rod; 312, clamping tooth; 313, fixed block; 314, spring telescopic rod; 315, clamping block; 32, pushing assembly; 321, connecting rod; 322, slide groove; 323, guide rail. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-5 As shown in the drawings, the present application is a combustible gas detection device, which comprises a detector 111, and the rear side of the detector 111 is fixedly connected with a rectangular protective shell 112, further comprising: an adjusting part 2, which is installed on the detector 111; and a self-locking part 3, which is arranged in the rectangular protective shell 112.

[0025] The adjusting part 2 comprises an adjusting assembly 21 arranged on the detector 111, and a guiding assembly 22 installed in the rectangular protective shell 112. The adjusting assembly 21 comprises two hinged rods 211 arranged in the rectangular protective shell 112, and a hinge shaft 212 penetrating through the two hinged rods 211. The front side of the hinge shaft 212 is fixedly connected with an L-shaped block 213. The front side of each of the two hinged rods 211 is hingedly provided with a U-shaped rod 214. The front side of each of the two U-shaped rods 214 is provided with a holding piece. Each of the two hinged rods 211 is rotationally connected with the hinge shaft 212, that is, the two hinged rods 211 are hingedly connected through the hinge shaft 212. The holding piece comprises a holding plate 215 fixedly connected with the front side of each of the two U-shaped rods 214. The side, which is close to each other, of each of the two holding plates 215 is in contact with the detector 111. The guiding assembly 22 comprises two guiding sliding rods 221 fixedly connected with the side, which is close to each other, of each of the two U-shaped rods 214. The outer wall of each of the plurality of guiding sliding rods 221 is fixedly connected with a supporting block 222. The side, which is close to the hinge shaft 212, of each of the plurality of guiding sliding rods 221 is fixedly connected with an anti-dropping block 223. The front side of each of the plurality of supporting blocks 222 is fixedly connected with the rear side of the detector 111. By arranging the adjusting part 2, the adaptation to the size difference of multiple palms is achieved. The universality and comfort of the equipment holding are improved. The stable holding of the staff during long-time detection operation is ensured. The hand fatigue is reduced. The efficiency and accuracy of the detection work are indirectly ensured.

[0026] The self-locking part 3 comprises a buckle assembly 31 arranged on the rear side of the detector 111, and a dialing assembly 32 installed on the rectangular protective shell 112. The buckle assembly 31 comprises a sliding rod 311 fixedly connected with the bottom of the L-shaped block 213. The left side and the right side of the sliding rod 311 are fixedly connected with a plurality of clamping teeth 312. The rear side of the detector 111 is fixedly connected with two fixed blocks 313. The side, which is close to the sliding rod 311, of each of the two fixed blocks 313 is fixedly connected with a spring telescopic rod 314. The two spring telescopic rods 314 are provided with a buckle piece. The two fixed blocks 313 are mirror images of each other. The buckle piece comprises a clamping block 315 fixedly connected with the side, which is close to the sliding rod 311, of each of the two spring telescopic rods 314. The outer wall of each of the two clamping blocks 315 is in contact with the corresponding clamping tooth 312. The front side of each of the two connecting rods 321 is fixedly connected with the two clamping blocks 315. The dialing assembly 32 comprises two connecting rods 321 arranged on the rectangular protective shell 112. The rear side of the rectangular protective shell 112 is provided with two sliding grooves 322. The rear side of the detector 111 is fixedly connected with a guide rail 323. The inner wall of the guide rail 323 is in sliding connection with the sliding rod 311. The inner wall of each of the two sliding grooves 322 is in sliding connection with the outer wall of each of the two connecting rods 321. By arranging the self-locking part 3, the holding plate is prevented from being retracted due to force during holding, and a stable holding state is maintained. Meanwhile, the staff can be conveniently unlocked when not in use. The self-locking part 3 has the reliability of locking and the convenience of operation, and further optimizes the use experience of the detector.

[0027] One specific application of the embodiment is: in use, first press and hold the power key of the detector 111 to turn on and wait for self-checking to complete, confirm that the display screen has no fault prompt and the battery has sufficient power, then aim the sampling port of the detector 111 at the area to be detected, and keep a stable posture to collect gas; after the concentration value on the display screen stabilizes, read and judge whether the current concentration of the combustible gas is within the safe range, if the concentration reaches or exceeds the preset alarm threshold, the device triggers an audible and light alarm, and the user needs to immediately evacuate the dangerous area and take measures such as ventilation and leakage source investigation; after the detection is completed, press and hold the power key to turn off, clean the sampling port, properly store the device, and regularly calibrate and maintain the device according to the requirements in the instruction manual to ensure the detection accuracy of the device. When holding the device, first adjust the distance between the two grip plates 215 to adapt to the differences in the palms of various people. Pull one grip plate 215, which will pull the corresponding U-shaped rod 214 to rotate the articulated rod 211 connected thereto. The articulated rod 211 pulls the articulated shaft 212 to rotate the articulated rod 211 on the other side, which in turn pulls the grip plate 215 on the other side away from the detector 111 through the corresponding U-shaped rod 214. That is, when one side of the grip plate 215 is pulled away, the grip plate 215 on the other side will be pulled out at the same time. After the distance between the two grip plates 215 reaches the optimal distance, stop pulling the grip plate 215 to complete the adjustment. During the process of pulling the grip plate 215, the articulated shaft 212 rises and pulls the slide rod 311 up through the L-shaped block 213. At this time, the buckle assembly 31 and the toggle assembly 32 on the left side of the slide rod 311 are analyzed, and the right side is similar. When the slide rod 311 rises, the corresponding teeth 312 on it will press the clamping block 315, causing the clamping block 315 to move closer to the fixed block 313 and compress the spring expansion rod 314. Until the clamping block 315 slides into the gap between the next several teeth 312, the spring expansion rod 314 rebounds to make the clamping block 315 snap into the gap, thereby preventing the slide rod 311 from falling and preventing the articulated shaft 212 and the L-shaped block 213 from falling. That is, it can prevent the two grip plates 215 from being pulled back when holding due to the holding force. When folding the two grip plates 215 back, pull the two connecting rods 321 to move them away from each other, which in turn causes the two clamping blocks 315 to move away from each other and compress the two spring expansion rods 314. Until the two clamping blocks 315 are separated from the corresponding teeth 312, the two grip plates 215 can be pushed back to their original position. Then release the two connecting rods 321, and the spring expansion rods 314 rebound to move the clamping blocks 315 back to their original position, thereby folding and storing the two clamping blocks 315.

[0028] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The preferred embodiments of the utility model disclosed above are only used for helping to set forth the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the whole scope and equivalents thereof.

Claims

1. A combustible gas detection device, comprising a detector (111) and a rectangular protective shell (112) fixedly connected to the rear side of the detector (111), characterized in that, Also include: Adjustment part (2), the adjustment part (2) is installed on the detector (111); Self-locking part (3), the self-locking part (3) is arranged in the rectangular protective shell (112); The adjustment part (2) includes adjustment assembly (21), which is arranged on the detector (111); and Guide assembly (22), the guide assembly (22) is installed in the rectangular protective shell (112); The adjustment assembly (21) includes two hinged rods (211) arranged in the rectangular protective shell (112), a hinged shaft (212) penetrates through the two hinged rods (211), the front side of the hinged shaft (212) is fixedly connected with an L-shaped block (213), the front side of the two hinged rods (211) is hingedly provided with a U-shaped rod (214), and the front side of the two U-shaped rods (214) is provided with a holding piece; Wherein, two hinged rods (211) are rotatably connected with hinged shaft (212), that is, two hinged rods (211) are hingedly connected through hinged shaft (212).

2. The combustible gas detection device of claim 1, wherein, The self-locking part (3) includes buckle assembly (31), which is arranged on the rear side of the detector (111); and Dial assembly (32), the dial assembly (32) is installed on the rectangular protective shell (112).

3. The combustible gas detection device of claim 2, wherein, The guide assembly (22) includes two guide sliding rods (221) fixedly connected on the sides of the two U-shaped rods (214) close to each other, the outer walls of the guide sliding rods (221) are fixedly connected with support blocks (222), and the sides of the guide sliding rods (221) close to the hinged shaft (212) are fixedly connected with anti-dropping blocks (223); Wherein, the front side of the plurality of support blocks (222) is fixedly connected with the rear side of the detector (111).

4. The combustible gas detection device of claim 3, wherein, The buckle assembly (31) includes a sliding rod (311) fixedly connected to the bottom of the L-shaped block (213), the left and right sides of the sliding rod (311) are fixedly connected with a plurality of clamping teeth (312), the rear side of the detector (111) is fixedly connected with two fixed blocks (313), the sides of the two fixed blocks (313) close to the sliding rod (311) are fixedly connected with spring telescopic rods (314), and the two spring telescopic rods (314) are provided with buckle pieces; Wherein, two fixed blocks (313) are mirror images of each other.

5. The combustible gas detection device of claim 4, wherein, The dial assembly (32) includes two connecting rods (321) arranged on the rectangular protective shell (112), two sliding grooves (322) are formed in the rear side of the rectangular protective shell (112), the rear side of the detector (111) is fixedly connected with a guide rail (323), and the inner wall of the guide rail (323) is in sliding connection with the sliding rod (311); Wherein, the inner walls of the two sliding grooves (322) are in sliding connection with the outer walls of the two connecting rods (321), respectively.

6. The combustible gas detection device of claim 5, wherein, The holding piece includes a holding plate (215) fixedly connected to the front side of the two U-shaped rods (214); Wherein, the sides of the two holding plates (215) close to each other are in contact with the detector (111).

7. A combustible gas detection device according to claim 6, characterised in that, The buckle piece comprises clamping blocks (315) fixedly connected to two spring telescopic rods (314) respectively on the side close to the sliding rod (311), and the outer walls of the two clamping blocks (315) are in contact with corresponding clamping teeth (312) respectively. The front sides of the two connecting rods (321) are fixedly connected with the two clamping blocks (315) respectively.

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